Which process forms exfoliation domes? reactions with oxygen biological activity frost wedging unloading

The development of an exfoliation dome begins with sheeting(Sheeting, or Contour Weathering, is a type of physical weathering in which a single layer of rock is broken off. The layer, or sheet, tends to break off of the rock in the same shape or form of the rock or gravestone.)

this process occurs in part because of the great lessening in pressure when the superimposing rock is eroded away and unloading and weathering occurs

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.